Abstract
William James's disgust for scientific arrogance was not in defiance of his early education in science, but because of it. In particular, James was influenced by the probabilistic method of Charles Darwin's theory of natural selection, especially as interpreted by Charles Sanders Peirce. Peirce, who was James's most immediate scientific influence, maintained an unresolved ambiguity between a probabilistic scientific fallibilism and a confidence in science's quest for certainty, while James emphasized the fallibilism of science as the crowning evidence for epistemological uncertainties. Despite his disagreement with scientific certainty, James fully supported science as a fallible, useful means of inquiry